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患者、男,54岁,有冠心病史10年,门诊ECG示:多数导联均出现未下传型或P—R间期延长型之房早,少数导联无房早,仅为窦性心动过缓。举其中L_Ⅰ、V_5、L_Ⅲ加以分析。 L_Ⅰ示:窦性心动过缓,HR53.5次/min,P—
Patients, male, 54 years old, with a history of 10 years of coronary heart disease, outpatient ECG showed: Most leads are not down type or P-R prolongation of the room early, a few leads without room early, only sinus Bradycardia. Which L_I, V_5, L_ Ⅲ to be analyzed. L_I shows: sinus bradycardia, HR53.5 times / min, P-